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855 Newcombia (A916 GP)
Classification: Main-belt Asteroid          SPK-ID: 2000855
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 40 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1786666304338046 3.5692e-08  
a 2.362383701549285 7.1542e-09 au
q 1.940304565801735 8.3732e-08 au
i 10.88087333610875 4.1594e-06 deg
node 17.1177516660292 1.8626e-05 deg
peri 233.9835249234259 2.1838e-05 deg
M 211.618572797947 1.363e-05 deg
tp 2459547.139646252332
(2021-Nov-28.63964625)
5.1191e-05 TDB
period 1326.245988878834
3.63
6.0245e-06
1.649e-08
d
yr
n .2714428567692276 1.233e-09 deg/d
Q 2.784462837296835 8.4324e-09 au
  Orbit Determination Parameters
   # obs. used (total)      2639  
   data-arc span      37981 days (103.99 yr)  
   first obs. used      1916-04-28  
   last obs. used      2020-04-23  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .42625  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-May-20 01:14:00  

Additional Information
 Earth MOID = .949554 au 
 Jupiter MOID = 2.29791 au 
 T_jup = 3.505 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 11.7   n/a MPO431501  
diameter diameter 12.392 km 0.088 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2014ApJ...791..121M)  
rotation period rot_per 3.003 h n/a LCDB (Rev. 2019-August); Warner et al., 2009 Published Reference List:
[Cooney, Jr.; W.R.; Gross, J.; Terrell, D.; Reddy, V.; Dyvig, R. (2007) Minor Planet Bull. 34, 47-48.]
[Klinglesmith III, D.A.; Hanowell, J.; Risley, E.; Turk, J.; et al. (2014) Minor Planet Bull. 41, 139-143.]
[Stephens, R.D. (2014) Minor Planet Bull. 41, 171-175.]
[Klinglesmith III, D.A.; Hendrickx, S.; Madden, K.; Montgomery, S. (2016) Minor Planet Bull. 43, 123-128.]
[Klinglesmith III, D.A.; Hendrickx, S.; Kimber, C.; Madden, K. (2017) Minor Planet Bull. 44, 244-246.]
geometric albedo albedo 0.219   0.040 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2014ApJ...791..121M)  

855 Newcombia (A916 GP)          Discovered 1916-Apr-03 by Belyavskij, S. at Simeis
Independent discovery Apr. 28 by M. Wolf, Heidelberg, was announced first.
Reference: DISCOVERY.DBLast Updated: 2003-08-29

Alternate Designations
 A916 GP = 1935 SJ1 = 1938 KB 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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